Clamping-ear for trolley-wires.



F. GUILLOT.

GLAMPING- EAR FOR TROLLBY WIRES. APPLICATION mum 001.10, 1907.

/WiZtness:;: m

Patented Apr. 27, 1909.

Inventor Frank Gui! lot.

1H: NORRIS PETERS 0a., wAsnmcmu, D. c.

UNITED STATES PATENT OFFICE.

FRANK GUILLOT, OF SCHENEOTADY, NEW YORK, ASSIGNOR TO GENERAL ELECTRICCOMPANY, A CORPORATION OF NEW YORK.

CLAIJIPING-EAR FOR TROLLEY-WIRES.

To all whom it may concern:

Be it known that I, FRANK GUILLO'r, a citizen of the United States,residing at Schenectady, county of Schenectady, State of New York, haveinvented certain new and useful Improvements in Clamping-Ears forTrolleyires, of which the following is a specification.

This invention relates to overhead electric railways, and its object isto provide an improved clamping ear or clip for suspending an overheadconductor from a trolley-pole arm, span wire or messenger wire. The earcomprises two aws adapted to be slid into a holder in which they have afulcrum bearing, so that when spread apart at their upper edges by awedge their lower edges will engage the sides of the trolley wire.

In the accompanying drawing, Figure 1 is a side elevation of oneembodiment of the invention; Fig. 2 is an end view of the same; Fig. 3is a longitudinal section; and Fig. 1 is a perspective view of one ofthe clamping jaws.

The body portion or holder 1 is tubular, being substantially cylindricaland open on its lower side, forming a narrow longi tudinal mouth. Thebody is provided with suitable means for suspending it, such for exampleas the fork 2 adapted to receive a rod 3, to which it can be secured byrivets 1. The two clamping-jaws 5 are slightly longer than the body 1.They have straight semi-circular upper portions or rounded enlargements6 adapted to lit the inside of the holder when they are slid into itlengthwise. Their middle portions 7 are thin, to correspond with thenarrow longitudinal mouth of the holder. The lower edges 8 of the jawsare hooked to enable them to engage in the grooves in the sides of thetrolley wire 9.

I The upper edges 10 of the jaws are rabbeted to aiford supportingshoulders 11 for a long slightly tapering and preferably square wedge12. At one end of each jaw is a rib 13. The jaws are slid into theholder lengthwise, one from each end until the ribs 13 abut against theend of the holder. The hooked edges 8 are spread apart and slipped downover the trolley wire until they engage with its grooves. The wedge 12is then driven in between the upper edges 10, forcing them apart andbringing the rounded Specification of Letters Patent.

Application filed October 10, 1907.

Patented April 27, 1909.

Serial No. 396,702.

enlargements 6 into close contact with the walls of the holder, andcausing the lower edges to grip the wire tightly; the lips 14 ot' themouth serving as fulcrums on which the jaws pivot along their middleportions. One or both ends of the wedge can then be bent to keep it fromslipping out.

This structure is exceedingly simple to make, since the holder and jawscan be cast. It can be quickly assembled, and set up in place by merelydriving the wedge and bending over its end. The structure is strong anddurable, and holds the trolley wire firmly; and yet it can be readilydisengaged therefrom when necessary.

\Vhat I claim as new and desire to secure by Letters Patent of theUnited States, is,

1. A clamping ear for trolley wires comprising a holder having twospaced fulcrums, two jaws disposed between and respectively engagingsaid tulcrulns, and means for tilting said jaws upon said tulcrums intoengagement with the trolley wire.

2. A clamping ear for trolley wires comprising a tubular holder havingan open mouth along its under side, two jaws adapted to slide lengthwiseinto said holder having enlarged upper portions to engage therein, andmeans for forcing apart the upper edges of said jaws.

3. A clamping ear for trolley wires comprising a tubular holder having anarrow open mouth extending along its lower side, two jaws having hookedlower edges and rounded enlargements along their upper edges to iit intosaid holder, and a wedge adapted to force apart the upper edges of saidjaws.

1. A clamping ear for trolley wires comprising a tubular holder having anarrow open mouth extending along its lower side, two jaws each having arib at one end and adapted to pivot on the lips of said month, shouldersalong the upper edges of said jaws, and a wedge supported on said shoulders.

In witness whereof, I have hereunto set my hand this 8th day of October,1907.

FRANK GUILLOT.

Witnesses BENJAMIN B. HULL, HELEN ORFORD.

